Re: [Boost-users] [Test] Testing generated code.

From: Hughes, James (jhughes_at_[hidden])
Date: 2007-06-29 05:19:14

> -----Original Message-----
> From: boost-users-bounces_at_[hidden] 
> [mailto:boost-users-bounces_at_[hidden]] On Behalf Of Zeljko Vrba
> Sent: 29 June 2007 08:40
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] [Test] Testing generated code.
> 
> On Fri, Jun 29, 2007 at 02:05:59AM -0500, Michael Marcin wrote:
> > 
> > There is a senior engineer that I work with who believes 
> templates are 
> > slow and prefers to write C or assembly routines. The templates are 
> > slow
> >
> 

There is some interesting evidence (don't have web address) that shows
that templates are actually considerably faster than some of the
standard C library functions (i.e. qsort vs std:: sort functions). This
is because templates are optimised to the actual type when in many cases
the standard C functions (although written in assembler) have to have
extra code (and therefore are slower) to handle more generic types.
Obviously, the exact differences will depend on the type of code being
used.

Try google searches on this - I was surprised at the difference -
perhaps your senior engineer will be also!!

James

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